铁心 tiěxīn resolute Definitions Defs Origin Strokes Stroke Words Sentences Sents tiěxīn resolute 铁 鐵 tiě adjective firm firm; solid; hard; strong-willed心 xīn noun intention purpose; motive; moral character or dispositiontiěxīn iron core 铁 鐵 tiě noun iron iron (Fe); the metal used for making steel and tools心 xīn noun center the middle or interior part of something; the coretiěxīn hard-hearted 铁 鐵 tiě violent cruel; violent; cold or heartless心 xīn noun heart the physical organ that pumps blood; refers to the chest area where the heart is located